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Finding the Fourth Proportional to 93,391.52, 128,880.60 and 50,950.94

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Solution

The fourth proportional to 93,391.52, 128,880.60 and 50,950.94 is: 70,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,391.52 : 128,880.60 = 50,950.94 : x
  2. Step 2: Convert to fraction form
    93,391.52/128,880.60 = 50,950.94/x
  3. Step 3: Cross multiply
    93,391.52x = 128,880.60 × 50,950.94
  4. Step 4: Simplify right side
    93,391.52x = 6,566,587,717.76
  5. Step 5: Solve for x
    x = 6,566,587,717.76/93,391.52
  6. Step 6: Final answer
    x = 70,312.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.